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Drag and Drop: Added DragSource from color square. Added DragTarget on ColorEdit4 widget. (#143)

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This commit is contained in:
omar 2017-11-30 16:54:39 +01:00
parent 63712d5f5c
commit 6ea744d8f4
1 changed files with 21 additions and 0 deletions
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21
imgui.cpp
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@ -9671,6 +9671,16 @@ bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFl
else
window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), rounding); // Color button are often in need of some sort of border
if (g.ActiveId == id && BeginDragDropSource()) // NB: The ActiveId test is merely an optional micro-optimization
{
SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, &col, sizeof(col), ImGuiCond_Once);
ColorButton(desc_id, col, flags);
SameLine();
TextUnformatted("Color");
EndDragDropSource();
hovered = false;
}
if (!(flags & ImGuiColorEditFlags_NoTooltip) && hovered)
ColorTooltip(desc_id, &col.x, flags & (ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf));
@ -9947,6 +9957,17 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
PopID();
EndGroup();
if (window->DC.LastItemRectHoveredRect && BeginDragDropTarget()) // NB: The LastItemRectHoveredRect test is merely an optional micro-optimization
{
if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
{
IM_ASSERT(payload->DataSize == sizeof(ImVec4));
memcpy((float*)col, payload->Data, sizeof(ImVec4));
value_changed = true;
}
EndDragDropTarget();
}
return value_changed;
}